Math for Contests

National Competitions
The Canadian Mathematical Society holds math competitions in Canada, including:

Canadian Open Mathematics Challenge (COMC)

Canadian Repêchage Competition (CMOQR)

Canadian Mathematical Olympiad (CMO)

Asian Pacific Mathematics Olympiad (APMO) aims to encourage and challenge mathematically gifted children in all Pacific-Rim countries. Each year the Canadian Mathematical Society invites 20-30 students to write the APMO based on their results in other national and international competitions.
The University of Waterloo Centre for Education in Mathematics and Computing (CEMC) offers math and computer science competitions for students in grades 7-12.

CEMC Gauss (Grade 7)

CEMC Gauss (Grade 8)

CEMC Pascal (Grade 9)

CEMC Cayley (Grade 10)

CEMC Fermat (Grade 11)

CEMC Fryer (Grade 9)

CEMC Galois (Grade 10)

CEMC Hypatia (Grade 11)

CEMC Euclid (Grade 12)

CEMC Intermediate Competition (Grade 10 or lower)

CEMC Senior Competition (Grade 10 or lower)

CEMC Team Competition (6 secondary students)

CEMC Canadian Computing Competition

CEMC Beaver Computing Challenge